Monongahela Township, Greene County, Pennsylvania

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Monongahela Township
Houses in the community of Glassworks
Houses in the community of Glassworks
Location of Monongahela Township in Greene County
Location of Monongahela Township in Greene County
Location of Greene County in Pennsylvania
Location of Greene County in Pennsylvania
Country United States
State Pennsylvania
County Greene
 • Total 17.8 sq mi (46 km2)
 • Land 17.3 sq mi (45 km2)
 • Water 0.6 sq mi (2 km2)
Population (2000)
 • Total 1,714
 • Density 96/sq mi (37/km2)
Time zone EST (UTC-4)
 • Summer (DST) EDT (UTC-5)
Area code(s) 724

Monongahela Township is a township in Greene County, Pennsylvania, United States. The population was 1,714 at the 2000 census.


Monongahela Township is the location of a prehistoric petroglyph site known as the "Sugar Grove Petroglyphs." Created by an unknown Native American people, the petroglyphs are an archaeological site,[1] and they have been listed on the National Register of Historic Places.[2]

The Glassworks-Gabler House Glassworks-Core House, John Minor Crawford House, and Reppert-Gabler House are also listed on the National Register of Historic Places.[2]


According to the United States Census Bureau, the township has a total area of 17.8 square miles (46.2 km²), of which, 17.3 square miles (44.7 km²) of it is land and 0.6 square miles (1.5 km²) of it (3.14%) is water.


As of the census[3] of 2000, there were 1,714 people, 677 households, and 513 families residing in the township. The population density was 99.2 people per square mile (38.3/km²). There were 726 housing units at an average density of 42.0/sq mi (16.2/km²). The racial makeup of the township was 99.18% White, 0.23% African American, 0.12% Native American, 0.12% Asian, 0.06% from other races, and 0.29% from two or more races. Hispanic or Latino of any race were 0.29% of the population.

There were 677 households, out of which 31.0% had children under the age of 18 living with them, 59.5% were married couples living together, 11.1% had a female householder with no husband present, and 24.2% were non-families. 22.7% of all households were made up of individuals, and 13.0% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 2.91.

In the township the population was spread out, with 22.6% under the age of 18, 7.8% from 18 to 24, 25.8% from 25 to 44, 25.8% from 45 to 64, and 18.0% who were 65 years of age or older. The median age was 41 years. For every 100 females there were 100.2 males. For every 100 females age 18 and over, there were 98.5 males.

The median income for a household in the township was $30,192, and the median income for a family was $35,167. Males had a median income of $34,318 versus $21,875 for females. The per capita income for the township was $17,158. About 12.9% of families and 15.5% of the population were below the poverty line, including 23.0% of those under age 18 and 13.1% of those age 65 or over.


  1. ^ Herbstritt, James T. National Register of Historic Places Inventory/Nomination: Sugar Grove Petroglyph Site (36GR5). National Park Service, 1980-07-22, 1.
  2. ^ a b National Park Service (2009-03-13). "National Register Information System". National Register of Historic Places. National Park Service. 
  3. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31. 

Coordinates: 39°50′00″N 79°57′29″W / 39.83333°N 79.95806°W / 39.83333; -79.95806